TOKSISITAS LIMBAH CAIR MINYAK BUMI TERHADAP BENIH KERAPU BEBEK (Cromileptis altivelis)
Abstract: Acute toxicity and
sub-acute test of heavy metal Cd (cadmium) to fish ofcath-fish (Cromileptes
altivelis) have been done from January 10th-March 20th2009 in Laboratory of
Water Quality Management, Faculty of Fisheries andMarine Science, Riau
University, Pekanbaru. This experiment aimed to determinethe lethal and
sub-acute toxicities of the heavy metal Cd (cadmium) toxicantconcentration to
fish of the cath-fish, Cromileptes altivelis, which is an importantof fish
species freshwater culture in Indonesia, especially in Riau. Result of
theexperiments indicated that heavy metal Cd (cadmium) concentrations have
aneffect on to mortalitas, absolute weight growth, daily growth rate, survival
rateand behavior of Cromileptes altivelis). LC50 96 value was 1,295 mg/L. And
AF(Application factor) value is 0,01. Evaluation on the safe concentration
level ofthe heavy metal Cd (cadmium) toxicant was based on the data obtained
fromsubchronic tests (i.e. effects on the absolute weight growth, daily growth
rate,survival rate and behaviour). The estimate values of NOEC (No Observed
EffectConcentration) for heavy metal Cd (cadmium) toxicant was 0,013 mg/L.
Key words: Toxicity, Cadmium,
Sub-acute, Cromileptes altivelis, Burchell
Penulis: Syafriadiman, Eryan
Huri, Sampe Harahap
Kode Jurnal: jpperikanandd090086